400ex jetting

[mattyk1221]

i want to take out my baffle and i dont know what jets i need or anything like that need help?!?!!?!?!?!?!?!?!!?!?!

[khen]

If you're currently stock and you're just removing the exhaust baffle you shouldn't need to jet up to much if any. You could try going up to a 150 main and 40 pilot or just do a seat of the pants test with your stock jets and see if it backfires or hesitates on hard acceleration and if it does go to the bigger jets.

Good luck and welcome to exriders.

[cals400ex]

there is a good chance you may not even need to change. however, your elevation level and temperature you ride in will matter significantly. if you rather be on the safe side, you can put in a keihin 150 mainjet and turn the fuel screw out 1/4 turn or so.